Combination machines from Vac-Con are available in configurations from 3.5- to 16-cubic-yard capacities, with hydrostatically-driven two- and three-stage centrifugal compressors and optional positive displacement blowers with up to 27 inches Hg. High-pressure, smooth-flow water systems offer up to 120 gpm and 3,000 psi, with cross-linked polyethylene water storage tanks with total capacities up to 1,500 gallons. They can be equipped with a 180-degree articulating front-mounted hose reel in capacities up to 1,000 feet, and high-pressure hose diameters from 5/8 to 1 1/4 inches. Front-mounted telescopic booms are available with up to a 10-foot extension, and 8- and 10-inch tube diameter. They can double as a vacuum excavator with the optional hydroexcavation package, allowing the operator to reduce the volume of water, maintain the pressure for digging and direct the flow through a conventional excavation hand wand. 904/284-4200; www.vac-con.com.